Finding the Fourth Proportional to 879,231.41, 1,316,780.40 and 428,539.92
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Solution
The fourth proportional to 879,231.41, 1,316,780.40 and 428,539.92 is: 641,802.55
Step by Step Solution
- Step 1: Write the proportion equation
879,231.41 : 1,316,780.40 = 428,539.92 : x - Step 2: Convert to fraction form
879,231.41/1,316,780.40 = 428,539.92/x - Step 3: Cross multiply
879,231.41x = 1,316,780.40 × 428,539.92 - Step 4: Simplify right side
879,231.41x = 564,292,961,532.13 - Step 5: Solve for x
x = 564,292,961,532.13/879,231.41 - Step 6: Final answer
x = 641,802.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.